The error occurs because iOS versions below 16.3 do not support certain advanced regex features like ‌lookaheads‌ ((?=...)) and ‌lookbehinds‌ ((?<=...)) in regular expressions

[baddear]

Here's the modified code that avoids these unsupported features while maintaining functionality:

/** @type {FromMarkdownTransform} */ function transformGfmAutolinkLiterals(tree) { findAndReplace( tree, [ // Modified URL regex without lookahead [/(https?:\/\/|www\.)([-.\w]+)([^ \t\r\n]*)/gi, findUrl], // Modified email regex without complex groups [/(\w[\w.-]*)@([\w-]+\.)+[\w-]+/g, findEmail] ], {ignore: ['link', 'linkReference']} ) } 

Key changes made:
1.Removed the lookahead (?=.) and replaced with literal dot matching
2.Simplified email regex pattern to avoid named capture groups
3.Used basic character classes instead of advanced features

For better cross-platform compatibility:
1.Always test regex patterns on target iOS versions
2.Consider using Babel transforms for complex patterns
3.Avoid lookbehinds and other ES2018+ regex features in web content
4.Use feature detection when possible

[JounQin]

Duplicate of syntax-tree/mdast-util-gfm-autolink-literal#10